sifive: Move QOM typedefs and add missing includes
[qemu.git] / include / hw / misc / unimp.h
1 /*
2 * "Unimplemented" device
3 *
4 * Copyright Linaro Limited, 2017
5 * Written by Peter Maydell
6 */
7
8 #ifndef HW_MISC_UNIMP_H
9 #define HW_MISC_UNIMP_H
10
11 #include "hw/qdev-properties.h"
12 #include "hw/sysbus.h"
13 #include "qapi/error.h"
14 #include "qom/object.h"
15
16 #define TYPE_UNIMPLEMENTED_DEVICE "unimplemented-device"
17
18 typedef struct UnimplementedDeviceState UnimplementedDeviceState;
19 DECLARE_INSTANCE_CHECKER(UnimplementedDeviceState, UNIMPLEMENTED_DEVICE,
20 TYPE_UNIMPLEMENTED_DEVICE)
21
22 struct UnimplementedDeviceState {
23 SysBusDevice parent_obj;
24 MemoryRegion iomem;
25 unsigned offset_fmt_width;
26 char *name;
27 uint64_t size;
28 };
29
30 /**
31 * create_unimplemented_device: create and map a dummy device
32 * @name: name of the device for debug logging
33 * @base: base address of the device's MMIO region
34 * @size: size of the device's MMIO region
35 *
36 * This utility function creates and maps an instance of unimplemented-device,
37 * which is a dummy device which simply logs all guest accesses to
38 * it via the qemu_log LOG_UNIMP debug log.
39 * The device is mapped at priority -1000, which means that you can
40 * use it to cover a large region and then map other devices on top of it
41 * if necessary.
42 */
43 static inline void create_unimplemented_device(const char *name,
44 hwaddr base,
45 hwaddr size)
46 {
47 DeviceState *dev = qdev_new(TYPE_UNIMPLEMENTED_DEVICE);
48
49 qdev_prop_set_string(dev, "name", name);
50 qdev_prop_set_uint64(dev, "size", size);
51 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
52
53 sysbus_mmio_map_overlap(SYS_BUS_DEVICE(dev), 0, base, -1000);
54 }
55
56 #endif